package {
    import flash.display.MovieClip;   
    public class Index extends MovieClip {
        public function Index() {
            var myCircle1:DrowCircle = new DrowCircle();
            var myCircle2:DrowCircle = new DrowCircle();
            myCircle1.x = 50;
            myCircle2.y = 200;
            addChild(myCircle1);
            addChild(myCircle2);
        }
    }
}
import flash.display.MovieClip;
class DrowCircle extends MovieClip {
        public function DrowCircle() {
            var centerX:Number = 100;
            var centerY:Number = 200;
            var r:Number = 50;
                
            graphics.lineStyle(2, 0x000000);
            graphics.moveTo(centerX+r, centerY);
                 
            graphics.curveTo(r+centerX, Math.tan(Math.PI/8)*r+centerY, Math.sin(Math.PI/4)*r+centerX,
            Math.sin(Math.PI/4)*r+centerY);
            graphics.curveTo(Math.tan(Math.PI/8)*r+centerX, r+centerY, centerX, r+centerY);
            graphics.curveTo(-Math.tan(Math.PI/8)*r+centerX, r+centerY, -Math.sin(Math.PI/4)*r+centerX,
            Math.sin(Math.PI/4)*r+centerY);
            graphics.curveTo(-r+centerX, Math.tan(Math.PI/8)*r+centerY, -r+centerX, centerY);
            graphics.curveTo(-r+centerX, -Math.tan(Math.PI/8)*r+centerY, -Math.sin(Math.PI/4)*r+centerX,
            -Math.sin(Math.PI/4)*r+centerY);
            graphics.curveTo(-Math.tan(Math.PI/8)*r+centerX, -r+centerY, centerX, -r+centerY);
            graphics.curveTo(Math.tan(Math.PI/8)*r+centerX, -r+centerY, Math.sin(Math.PI/4)*r+centerX,
            -Math.sin(Math.PI/4)*r+centerY);
            graphics.curveTo(r+centerX, -Math.tan(Math.PI/8)*r+centerY, r+centerX, centerY);
        }
}

【wonderfl本】class